Sir John Wedderburn, 5th Baronet of Blackness
…Robert's rejection by his father's family, he wrote The Horrors of Slavery, which was circulated by the abolitionist movement. A descendant of Robert was Bill Wedderburn, Baron Wedderburn of Charlton (1927-2012). James's children by his wife, Hon. Mary Louisa Eden, fifth daughter of William Eden, 1st Baron Auckland, include Andrew Colvile, governor…